As a plastic material, silicone rubber is called medical silicone rubber, because silicone rubber has good biocompatibility, no irritation to human tissues, no toxicity, no allergic reaction, less rejection and good physical and chemical properties. In the process of contact with body fluids and tissues, it can maintain its original elasticity and softness and is not degraded. It is a fairly stable inert substance. High temperature resistance, sterilization, convenient processing and molding, easy processing and carving, and convenient use, so it is widely used in cosmetic surgery.

Silicone rubber is a kind of synthetic rubber, and its chemical name is polymethylvinyl siloxane. It is polymerized by dimethyl siloxane monomer and other siloxane monomers under the action of acid or alkali catalyst, and its relative molecular weight is generally 400,000 ~ 500,000. The research and development and application of medical silicone rubber products in China began in the 1960s, but a lot of basic research and product trial production were carried out after the 1970s. Especially in recent decades, great progress has been made in the research of medical silicone rubber as a biocompatible material, and many functional and serialized medical silicone rubber products have been put into clinical application.